TY - JOUR
T1 - FOXD1-dependent MICU1 expression regulates mitochondrial activity and cell differentiation
AU - Shanmughapriya, Santhanam
AU - Tomar, Dhanendra
AU - Dong, Zhiwei
AU - Slovik, Katherine J.
AU - Nemani, Neeharika
AU - Natarajaseenivasan, Kalimuthusamy
AU - Carvalho, Edmund
AU - Lu, Christy
AU - Corrigan, Kaitlyn
AU - Garikipati, Venkata Naga Srikanth
AU - Ibetti, Jessica
AU - Rajan, Sudarsan
AU - Barrero, Carlos
AU - Chuprun, Kurt
AU - Kishore, Raj
AU - Merali, Salim
AU - Tian, Ying
AU - Yang, Wenli
AU - Madesh, Muniswamy
N1 - Publisher Copyright:
© 2018, The Author(s).
PY - 2018/12/1
Y1 - 2018/12/1
N2 - Although many factors contribute to cellular differentiation, the role of mitochondria Ca2+ dynamics during development remains unexplored. Because mammalian embryonic epiblasts reside in a hypoxic environment, we intended to understand whether mCa2+ and its transport machineries are regulated during hypoxia. Tissues from multiple organs of developing mouse embryo evidenced a suppression of MICU1 expression with nominal changes on other MCU complex components. As surrogate models, we here utilized human embryonic stem cells (hESCs)/induced pluripotent stem cells (hiPSCs) and primary neonatal myocytes to delineate the mechanisms that control mCa2+ and bioenergetics during development. Analysis of MICU1 expression in hESCs/hiPSCs showed low abundance of MICU1 due to its direct repression by Foxd1. Experimentally, restoration of MICU1 established the periodic cCa2+ oscillations and promoted cellular differentiation and maturation. These findings establish a role of mCa2+ dynamics in regulation of cellular differentiation and reveal a molecular mechanism underlying this contribution through differential regulation of MICU1.
AB - Although many factors contribute to cellular differentiation, the role of mitochondria Ca2+ dynamics during development remains unexplored. Because mammalian embryonic epiblasts reside in a hypoxic environment, we intended to understand whether mCa2+ and its transport machineries are regulated during hypoxia. Tissues from multiple organs of developing mouse embryo evidenced a suppression of MICU1 expression with nominal changes on other MCU complex components. As surrogate models, we here utilized human embryonic stem cells (hESCs)/induced pluripotent stem cells (hiPSCs) and primary neonatal myocytes to delineate the mechanisms that control mCa2+ and bioenergetics during development. Analysis of MICU1 expression in hESCs/hiPSCs showed low abundance of MICU1 due to its direct repression by Foxd1. Experimentally, restoration of MICU1 established the periodic cCa2+ oscillations and promoted cellular differentiation and maturation. These findings establish a role of mCa2+ dynamics in regulation of cellular differentiation and reveal a molecular mechanism underlying this contribution through differential regulation of MICU1.
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U2 - 10.1038/s41467-018-05856-4
DO - 10.1038/s41467-018-05856-4
M3 - Article
C2 - 30158529
AN - SCOPUS:85052663860
SN - 2041-1723
VL - 9
JO - Nature communications
JF - Nature communications
IS - 1
M1 - 3449
ER -